it was his two-stage process.? technology was not as advanced as it was today. the first day, they turn the paper into linguine, and then they turned it into confett the second stage broke down, so they recover the linguine, and with unlimited manpower and a limited time, and the skill that has gone into making persian carpets for hundreds of years, they will back together the least what they saw as the most sensitive documents. they were covered a lot of things undamaged, which they published in about 70 volumes, both english and persian. and next, classify, as a historian, i have to admire wha they did.